Pavement



July 19,1927. 1,636,114

H. 'D. STREATOR PAVEMENT Filed May 24, 1926 INVENTOR Q J/rea/or PatentedJuly 19, 1927.

UNITED STATES HENRY D. STREATOR, OF GALESBURG, MICHIGAN.

PAVEMENT.

Application filed May 24, 1926.-

The objects of this invention are:

First, to provide a pavement containing in its composite structure allof the advantages of a concrete pavement and at the same time all theadvantages of an asphalt pavement, and which may be readily opened andrepaired or parts be replaced.

Second, to provide in such a structure a topping which can be readilyrenewed.

Third, to provide such a pavement in which ample provision is made forexpansion.

Fourth, to provide such a pavement which is fully reinforced and at thesame time can be readily repaired.

Objects pertaining to details will appear from the detailed descriptionto follow. The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention isillustrated in the accompanying drawing, forming a part of thisapplication, in which:

Fig. 1 is a perspective View of a section of pavement, with parts brokenaway to show details of construction and arrangement.

Fig. 2 is an enlarged detail sectional View through a complete sectionof the pavement, taken on line 2-2 of Figs. 1 and 3, showing the blockcoupling means embedded in the asphalt.

Fig. 3 is a perspective View of one of my improved foundation blocksshowing the reinforcing bars in dotted lines and the coupling portionexposed at the notches.

Fig. l is an enlarged detail perspective view of the reinforce hairpinconnecting means between the blocks.

In the drawing like parts are identified by the same numerals ofreference throughout views.

Considering the drawing, 1 is an individual foundation blocksubstantially cubical in form with a bottom flange 2. For ordinarypavement work these blocks are about one foot square on the base, withthe flange projecting substantially one inch and being substantially twoinches thick. The upper face of these blocks is smooth. A vertical notch3 extends midway of each side from the top to the flange 2.

Reinforce bars 5 are disposed rectangularly with the body of the blocktowards its top and bottom with straight parts exposed at each notch 3.

The blocks are laid in the pavement on Serial No. 111,288.

any suitable foundation, which may be gravel, grout, or the compactedand level roadbed of any material. The blocks are slightly spaced,preferably by a piece of thin metal which is removed after the block isplaced. This facilitates access of moisture to the concrete, which isvery desirable.

The projecting parts of the reinforce 5 are side by side and the hairpin6 is inserted around the same, as seen in Fig. 3.

hen the foundation blocks have been thus laid, the asphaltic topping ispoured onto the pavement,-forming the top layer 7, and downwardlyprojecting engaging cross ribs 8 which embrace the hairpin 6. The resultis that all the foundation blocks are effectively interlocked andretained so that it cannot be displaced and it can expand and contractwithout becoming detached. from the concrete base. At the same time,when it is desired to open the pavement or to repair the same for anyreason, by simply cutting away the asphalt top a section can be removedand, further, it can be readily and accurately replaced.

Also, when the top layer wears down, it is possible to scrape the samedown to the foundation blocks and apply a new layer in an effective andsatisfactory manner. A foundation block or a line of them can be readilyremoved by digging out below.

I have shown my improved foundation blocks cubical in form. They may beof various shapes. It is clear they will be ef fective in this relationif they are not provided with a reinforce, although the particularreinforce I provide locates the same effectively and serves as a bindingmeans for the entire section, and at the same time is very accessibleand readily repaired.

The projection 8 of asphalt between the blocks can be varied inthickness and serve its purpose. I show ample thickness for the severestof conditions.

I show a concrete shoulder made up of sections 9 three feet long or longenough to embrace a plurality of blocks. base 2 and reinforce rods 5 andis notched at 3 for the hairpin couplings. The sections 9 are similarlynotched at their ends for end coupling.

Having thus described my invention, What I claim as new and desire tosecure by Letters Patent is:

1. In a pavement, the combination of a foundation madeup of spacedcubical blocks Each has a llu with flanged bases and vertically notchedt the sides, rectangular bar relnforcements in said blocks exposed atand extended across the notches at the sides, a retaining hairpin tiebetween said blocks embracing the exposed part of the reinforcements insaid notches on adjacent blocks, and an asphaltic topping withextensions into the spaces between said blocks embracing the said tie,coacting as specified.

In a pavement, the combination of a foundation made up of spaced cubicalblocks with flanged bases and vertically notched at the sides,rectangular bar reinforcements in said blocks exposed at and extendedacross the notches at the sides, a tie between said blocks embracing theexposed part of the reinforcements in said notches on adjacent blocks,and an asphaltic topping with extensions into the spaces between saidblocks embracing the said tie, co'acting as specitied.

, 8. In a pavement, the combination of a foundation made up of spacedcubical blocks with flanged bases and vertically notched at the sides,reinforcements in said blocks exposed at and extended across the notchesat the sides, a tie between said blocks embracing the exposed part ofthe reinforcements in said notches on adjacent blocks, and an asphaltictopping with extensions into the spaces between said blocks embracingthe said tie, coacting as specified.

4. In a pavement, the combination of a foundation made up of spacedcubical blocks with flanged bases, a tie between said blocks above saidflanges, and an asphaltic topping with extensions into the spacesbetween said blocks above said flanges embracing the said tie, coactingas specified.

In witness whereof I have hereunto set my hand.

HENRY D. STREATOR.

